Comprehensive Description

Read full entry

General Description

A large (7.5-11.0 cm. wingspan) long-winged grey moth with several black streaks and numerous darker wavy lines crossing the wings. The fine, somewhat diffuse wavy lines crossing the forewing in particular, combined with the large size and the dark and white markings on the thorax, are all diagnostic for undulosa in Alberta. The fringe of both wings is checkered black and white. The other large grey sphinx moths of Alberta have either a streaked as opposed to waved forewing (Sphinx chersis and S. vashti), or are mostly very dark grey or black (Sphinx drupiferarum and S. poecila). Royal Alberta Museum page


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© University of Alberta Museums

Source: University of Alberta Museums

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!